Recent climate science has shown an even greater threat posed by nuclear weapons. Even a small, regional nuclear war using a tiny fraction of the world's total stockpile would place 2 billion people at risk of starvation from the subsequent climatic change.

Ignorance is the enemy. Physicians like myself and those with this knowledge have a responsibility to educate the public about these dangers.

As with any public health threat, prevention is paramount. Otherwise we continue the drift toward unparalleled catastrophe.